Compare phones
| Global Score | |
| 73.1 | 85 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 10, 9.0 Pie |
| 2018-07-13 | 2019-06-18 |
| 6.03 x 3.00 x 0.34 inches | 6.11 x 2.91 x 0.31 inches |
| 6.38 ounces | 5.93 ounces |
| Blue | Midnight blue and Seawater blue |
| -- | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.3 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| TFT | IPS LCD |
| 267 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 675 SM6150 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 460, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 2 GB RAM | 6 GB RAM |
| Mali-T830 MP1 GPU | Adreno 612 GPU |
| 8.73 | 9.18 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.44 | 14.14 |
| Camera | |
| 13.00 MP + 13.00 MP | 32.00 MP + 16.00 MP |
| f/1.70 aperture | f/1.70 aperture |
| 28.00mm focal length | 27.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.13 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.44 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M40 is better than the Galaxy J7 Star, with a score of 85 against 73.1. These phones come with Android OS, but the Samsung Galaxy M40 has the older 10 version while Galaxy J7 Star has Android 9.0 Pie. Samsung Galaxy M40's body is newer, just a little bit thinner and a little bit lighter than the Galaxy J7 Star.
The Galaxy M40 has a bit faster processing unit than Galaxy J7 Star, and although they both have a Octa-Core processing unit, the Galaxy M40 also has a larger amount of RAM memory. Samsung Galaxy M40 has a sharper display than Samsung Galaxy J7 Star, because it has a much greater screen density, a bit bigger display and a much higher resolution of 1080 x 2340px.
The Samsung Galaxy M40 captures better videos and photos than Galaxy J7 Star, and although they both have a F1.7 camera aperture, the Samsung Galaxy M40 also has a camera with a way better 32 mega-pixels resolution, a much better 3840x2160 video quality and a larger camera sensor taking more light and vivid colors.
The Galaxy M40 has a lot bigger storage to install applications and games than Galaxy J7 Star, because it has 96 GB more internal storage and an external SD slot that holds a maximum of 512 GB. The Samsung Galaxy M40 has just a bit longer battery duration than Galaxy J7 Star, because it has a 3500mAh battery size against 3300mAh.
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